[FFmpeg-cvslog] swscale: fix invalid memory accesses in yuvpacked1() functions.
Ronald S. Bultje
git at videolan.org
Tue Feb 14 02:18:50 CET 2012
ffmpeg | branch: master | Ronald S. Bultje <rsbultje at gmail.com> | Sun Feb 12 15:47:14 2012 -0800| [1ca7dc60d2f2cac8fce1bdb53d3d5bae195161b0] | committer: Ronald S. Bultje
swscale: fix invalid memory accesses in yuvpacked1() functions.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1ca7dc60d2f2cac8fce1bdb53d3d5bae195161b0
---
libswscale/output.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/libswscale/output.c b/libswscale/output.c
index 93a6a03..5b2ba37 100644
--- a/libswscale/output.c
+++ b/libswscale/output.c
@@ -629,20 +629,20 @@ yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
const int16_t *abuf0, uint8_t *dest, int dstW,
int uvalpha, int y, enum PixelFormat target)
{
- const int16_t *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
- *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];
+ const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
int i;
if (uvalpha < 2048) {
for (i = 0; i < (dstW >> 1); i++) {
int Y1 = buf0[i * 2] >> 7;
int Y2 = buf0[i * 2 + 1] >> 7;
- int U = ubuf1[i] >> 7;
- int V = vbuf1[i] >> 7;
+ int U = ubuf0[i] >> 7;
+ int V = vbuf0[i] >> 7;
output_pixels(i * 4, Y1, U, Y2, V);
}
} else {
+ const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
for (i = 0; i < (dstW >> 1); i++) {
int Y1 = buf0[i * 2] >> 7;
int Y2 = buf0[i * 2 + 1] >> 7;
@@ -775,8 +775,7 @@ yuv2rgb48_1_c_template(SwsContext *c, const int32_t *buf0,
const int32_t *abuf0, uint16_t *dest, int dstW,
int uvalpha, int y, enum PixelFormat target)
{
- const int32_t *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
- *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];
+ const int32_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
int i;
if (uvalpha < 2048) {
@@ -807,6 +806,7 @@ yuv2rgb48_1_c_template(SwsContext *c, const int32_t *buf0,
dest += 6;
}
} else {
+ const int32_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
for (i = 0; i < (dstW >> 1); i++) {
int Y1 = (buf0[i * 2] ) >> 2;
int Y2 = (buf0[i * 2 + 1]) >> 2;
@@ -1070,16 +1070,15 @@ yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,
int uvalpha, int y, enum PixelFormat target,
int hasAlpha)
{
- const int16_t *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
- *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];
+ const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
int i;
if (uvalpha < 2048) {
for (i = 0; i < (dstW >> 1); i++) {
int Y1 = buf0[i * 2] >> 7;
int Y2 = buf0[i * 2 + 1] >> 7;
- int U = ubuf1[i] >> 7;
- int V = vbuf1[i] >> 7;
+ int U = ubuf0[i] >> 7;
+ int V = vbuf0[i] >> 7;
int A1, A2;
const void *r = c->table_rV[V],
*g = (c->table_gU[U] + c->table_gV[V]),
@@ -1094,6 +1093,7 @@ yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,
r, g, b, y, target, hasAlpha);
}
} else {
+ const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
for (i = 0; i < (dstW >> 1); i++) {
int Y1 = buf0[i * 2] >> 7;
int Y2 = buf0[i * 2 + 1] >> 7;
More information about the ffmpeg-cvslog
mailing list